A virus has been spreading across America, but many are unaware of its existence and of the potential fallout. Chances are you've already been infected without even realizing it. The virus contains dangerous ideas--worldviews that seek to destroy Jesus and biblical living. According to a recent Barna study, only 3 percent of American evangelicals have an authentic biblical worldview. Dr. Jeff Myers shines a light on the bad ideas infecting Christians. Tackling some of the largest questions that trouble humanity, Dr. Myers explains how secularism, Marxism, Islam, new spirituality, and postmodernism, attempt to answer them; and he strengthens Christians how to understand what they believe, why they believe it, and how to defend against the idea viruses of today.